Home / 16,695.42-23,038.10-9,979.70

Finding the Fourth Proportional to 16,695.42, 23,038.10 and 9,979.70

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Solution

The fourth proportional to 16,695.42, 23,038.10 and 9,979.70 is: 13,771.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,695.42 : 23,038.10 = 9,979.70 : x
  2. Step 2: Convert to fraction form
    16,695.42/23,038.10 = 9,979.70/x
  3. Step 3: Cross multiply
    16,695.42x = 23,038.10 × 9,979.70
  4. Step 4: Simplify right side
    16,695.42x = 229,913,326.57
  5. Step 5: Solve for x
    x = 229,913,326.57/16,695.42
  6. Step 6: Final answer
    x = 13,771.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.